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Old 12-15-2009, 02:14 AM
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Lift is the least needed camshaft spec, we need duration @ .050 and lobe seperation angle to be able to input good data. Also need head flow #'s if you want results to be worth anything.

Holley never made a 780 DP, just 750 or 800 in the Double Pumper line, so what carb do you have?? 780's are Vacuum secondary with dual feed bowls.
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